AgentSkillsCN

Create Tool

创建工具

SKILL.md

Skill: Create Tool

Description

This skill guides the creation and registration of new LangChain/MCP tools in the backend/llm/tools_registry.py file.

Context

  • •Registry File: backend/llm/tools_registry.py
  • •Framework: LangChain (@tool decorator).
  • •Purpose: These tools are bound to the LLM agent to allow it to perform actions (search, calculation, API calls).

Rules

  1. •Imports: Ensure from langchain_core.tools import tool is imported.
  2. •Decorator: Decorate the function with @tool.
  3. •Docstring: Write a descriptive docstring. This is the prompt for the LLM. It must explain what the tool does and when to use it.
  4. •Type Hints: Use Python type hints for all arguments and the return value.
  5. •Registration: Add the function name to the available_tools list at the bottom of the file.

Procedure

  1. •Read: Read backend/llm/tools_registry.py to see existing imports and tools.
  2. •Implement: Append the new tool function to the file.
  3. •Register: Update the available_tools = [...] list to include the new function.

Example

python
@tool
def get_weather(city: str) -> str:
    """
    Get the current weather for a specific city.
    Use this when the user asks about weather conditions.
    """
    # Implementation...
    return "Sunny"

# ... existing code ...

available_tools = [web_search, calculator, get_weather]